Application: kmix (4.3)
KDE Platform Version: 4.10.00
Qt Version: 4.8.3
Operating System: Linux 3.5.0-25-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to switch output of Nuvola Player to bluetooth headset.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdfc8fd4780 (LWP 25837))]

Thread 3 (Thread 0x7fdfbb888700 (LWP 25838)):
#0  0x00007fff785eb827 in clock_gettime ()
#1  0x00007fdfd232015d in clock_gettime () from /lib/x86_64-linux-gnu/librt.so.1
#2  0x00007fdfd8a4d9f4 in do_gettime (frac=0x7fdfbb887b28, sec=0x7fdfbb887b20) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007fdfd8b2344d in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fdfb4002860) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007fdfd8b23793 in QTimerInfoList::timerWait (this=0x7fdfb4002860, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007fdfd8b222fc in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fdfbb887c14) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007fdfd8b223a5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007fdfd19c2618 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fdfd19c2cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fdfd19c2ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fdfd8b22c46 in QEventDispatcherGlib::processEvents (this=0x7fdfb40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007fdfd8af32ef in QEventLoop::processEvents (this=this@entry=0x7fdfbb887dd0, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007fdfd8af3578 in QEventLoop::exec (this=0x7fdfbb887dd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007fdfd89f4b40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007fdfd8ad39df in QInotifyFileSystemWatcherEngine::run (this=0x131ac10) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007fdfd89f7b1c in QThreadPrivate::start (arg=0x131ac10) at thread/qthread_unix.cpp:338
#17 0x00007fdfd252be9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#18 0x00007fdfdbcd3cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#19 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fdfbae73700 (LWP 25839)):
#0  0x00007fff785eb827 in clock_gettime ()
#1  0x00007fdfd232015d in clock_gettime () from /lib/x86_64-linux-gnu/librt.so.1
#2  0x00007fdfd8a4d9f4 in do_gettime (frac=0x7fdfbae72b28, sec=0x7fdfbae72b20) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007fdfd8b2344d in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fdfa8002660) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007fdfd8b23793 in QTimerInfoList::timerWait (this=0x7fdfa8002660, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007fdfd8b222fc in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fdfbae72c14) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007fdfd8b223a5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007fdfd19c2618 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fdfd19c2cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fdfd19c2ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fdfd8b22c46 in QEventDispatcherGlib::processEvents (this=0x7fdfa80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007fdfd8af32ef in QEventLoop::processEvents (this=this@entry=0x7fdfbae72dd0, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007fdfd8af3578 in QEventLoop::exec (this=0x7fdfbae72dd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007fdfd89f4b40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007fdfd8ad39df in QInotifyFileSystemWatcherEngine::run (this=0x15c9d90) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007fdfd89f7b1c in QThreadPrivate::start (arg=0x15c9d90) at thread/qthread_unix.cpp:338
#17 0x00007fdfd252be9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#18 0x00007fdfdbcd3cbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fdfc8fd4780 (LWP 25837)):
[KCrash Handler]
#5  0x00007fdfd8b09098 in QMetaObject::changeGuard (ptr=0x15d2e00, o=0x0) at kernel/qobject.cpp:461
#6  0x00007fdfd9b8f6dd in operator= (p=0x0, this=0x15d2e00) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#7  QMenuPrivate::activateAction (this=0x15d2b40, action=0x168e910, action_e=QAction::Trigger, self=<optimized out>) at widgets/qmenu.cpp:1133
#8  0x00007fdfdb58f4a0 in KMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libkdeui.so.5
#9  0x00007fdfd97a0850 in QWidget::event (this=0x15f1260, event=0x7fff784b0f30) at kernel/qwidget.cpp:8371
#10 0x00007fdfd9b9096b in QMenu::event (this=0x15f1260, e=0x7fff784b0f30) at widgets/qmenu.cpp:2469
#11 0x00007fdfd9750e9c in QApplicationPrivate::notify_helper (this=this@entry=0x113aa20, receiver=receiver@entry=0x15f1260, e=e@entry=0x7fff784b0f30) at kernel/qapplication.cpp:4562
#12 0x00007fdfd9755b6b in QApplication::notify (this=<optimized out>, receiver=0x15f1260, e=0x7fff784b0f30) at kernel/qapplication.cpp:4105
#13 0x00007fdfdb4d6636 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#14 0x00007fdfd8af459e in QCoreApplication::notifyInternal (this=0x111dcf0, receiver=0x15f1260, event=0x7fff784b0f30) at kernel/qcoreapplication.cpp:915
#15 0x00007fdfd9751cd3 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QApplicationPrivate::sendMouseEvent (receiver=0x15f1260, event=0x7fff784b0f30, alienWidget=0x0, nativeWidget=0x15f1260, buttonDown=0x7fdfda22d308 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#17 0x00007fdfd97cf41c in QETWidget::translateMouseEvent (this=this@entry=0x15f1260, event=event@entry=0x7fff784b16b0) at kernel/qapplication_x11.cpp:4556
#18 0x00007fdfd97ce44f in QApplication::x11ProcessEvent (this=0x111dcf0, event=0x7fff784b16b0) at kernel/qapplication_x11.cpp:3737
#19 0x00007fdfd97f5fa2 in x11EventSourceDispatch (s=0x113d120, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#20 0x00007fdfd19c2ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fdfd19c2de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fdfd19c2ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fdfd8b22c26 in QEventDispatcherGlib::processEvents (this=0x10f8ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#24 0x00007fdfd97f5c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007fdfd8af32ef in QEventLoop::processEvents (this=this@entry=0x7fff784b1a80, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007fdfd8af3578 in QEventLoop::exec (this=0x7fff784b1a80, flags=...) at kernel/qeventloop.cpp:204
#27 0x00007fdfd8af8738 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#28 0x00007fdfdbfe1b1a in kdemain (argc=5, argv=0x7fff784b1cc8) at ../apps/main.cpp:76
#29 0x00007fdfdbc0176d in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#30 0x00000000004006c1 in _start ()

Possible duplicates by query: bug 314611, bug 313197.

Reported using DrKonqi